1. P139 A randomised comparative study of cough peak expiratory flow (cpef) using full face mask vs mouthpiece interfaces in healthy subjects. (15th November 2017) Authors: Mearns, A; Subhan, F; Roberts, L Journal: Thorax Issue: Volume 72(2017)Supplement 3 Page Start: A158 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗